Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.2 MT Base Connectors
MT-B-L
Description
1-hole base plate intended to be installed with a Twist- Lock and Twist-Lock bolt for channel-to-concrete or channel-to-steel( X-BT / S-BT / F-BT compatible).
Material Specifications
Standard 1 Grade 1 F y, ksi( MPa) F u, ksi( MPa)
GB / T 700 Q235 B 34.08( 235) 53.66( 370)
1 Mechanical properties of GB / T 700 Grade Q235 B meet or exceed the mechanical properties of ASTM A1011 SS Grade 33.
Corrosion Protection
Description
Environmental Conditions
MT-B-L |
Dry indoor conditions( C1)
Indoor with temporary condensation( C2)
|
MT-B-L OC |
Outdoor, low to moderate pollution( C3 / C4- low) |
Ordering Information |
Description |
Weight Per
Piece, lbs( kg)
|
Quantity
Piece( s)
|
Item No. |
MT-B-L |
0.27( 0.12) |
20 |
2272086 |
MT-B-L OC 0.27( 0.12) 20 2272088
mm( in)
Figure 10 – MT Channel Anchoring to Concrete
Table 122- Allowable Strength Design( ASD) Load Data 1, 2, 3
Fx Fz lb( kN) lb( kN)
975 975
( 4.35)
( 4.35) 1 Minimum safety factor, Ω, for tabulated values is 2.3. 2 Multiply tabulated values by 1.5 to obtain minimum Load and
Resistance Factor Design( LRFD) values. 3 See Figure 10. 4 Load values are for base connector only. The design professional is responsible for checking concrete and fastener strength.
A. MT-30 / 50 / 60 / 40D
Table 123- Limit State Design( LSD) Load Data 1, 2, 3
Fx Fz lb( kN) lb( kN)
1,290 1,290
( 5.74)
( 5.74) 1 Maximum resistance factor, φ, for tabulated values is 0.57. 2 See Figure 10.
3 Load values are for base connector only. The design professional is responsible for checking concrete and fastener strength.
76 Modular Support Systems Technical Guide Edition 2 | Installation Systems Hilti, Inc. 1-800-879-8000 | en español 1-800-879-5000 | www. hilti. com | Hilti( Canada) Corporation | 1-800-363-4458 | www. hilti. ca